Ball valve



Dec. 27, 1927. 1,653,619

, H. BROWN BALL vALv-E Filed Feb. 18. 1927 enorme/1g Cil Patented Dec. 27, 1927.

UNiTEn srarss HAROLD BRQWN, 0F` KANSAS CITY, KANSAS.

BALL VALVE.

Application led. February 18, 1927. Serial No. 169,278.

My invention relates to valves and the present invention is an improvement over the valve disclosed by my copending application iiled. August 19, 1926, Serial No. 130,190. The new 'features vof the `invention include controlling' means Yfor forcing the ball plug to its seat without turning said ball plug and thereby possibly scarring or otherwise damaging the latter and said seat.

Another eatureconsists of a screen which strains outall grit, sediment andmetal par ticles from the fluid and prevents them from lodging between the ball plug andnits seat and thereby possibly damaging the same.

Other features will. hereinafter appear and in order that the invention may be ully understood, reference will now be had to the accompanying dra-wing, in which:

Fig. 1 is a vertical longitudinal section of the valve constructed in the liorm ol a faucet.

Fig. 2 is a fragmentary cross section of the upper portion of the valve casing.l

Fig. 3 `is a detail perspective view ci the screen.

Fig. 4 is a cross section on line 4-4 oi Fig. 1.

Fig. 5 is a detail perspective view of a cage for the ball plug, and a vertically adjustable member for forcing lsaid cage downwardly upon'said ball plug.

`Fig. 6 is la vertical longitudinal section oi the valve constructed in the form vot a. feed and check valve. y

Referring more particularly to the torni disclosed by Figs. 1 to 5. inclusive, 1 designates the valve casing which is providedl at its inlet end with threads 4 and at its oppos site end with a discharge nozzle 6.

3 designates a seat formed in a bushing 10.

arranged in a partition 12, which is cast integral with the intermediate portion of the casing l. rllhe bushing 10 has a port for the passage of water, steam, or other fluid,

and said port 14 is normally closed by a scat 21 ttor engaging the upper portion of the ball plug 21, as shown by Fig. 1.

34 designates a vertically adjustable member threaded in the valve casing 1 and pro vided with a depending axial nipple 36 arranged to rotate in an opening` 33, in the upper portion of thepcage 22 and communieating with. the relief ports 26 and 28, the relieI Vport 26 extending to the ball plug.

y 39 designates a valve stem having a lower portion 40 and a conical upper portion 41, which latter is j ournaled in a corresponding bushing 42 arranged withinfa cap 45 threaded upon the casing 1. Although the bushing 42 seats tightly within the cap 45, said bushing when worn out may be removed and another substituted in order that a fluidtight oint can bezmaintained between it and the conical upper portion 41 of the valve stem 39. The stem 39 is also provided with a conical collar 46 which lits snugly against the lower end of the bushing 42 to assist in maintaining` a fluid-tight joint between `the stem and said bushing. The lower portion 4() of the valve stem 39 is rectangular in lcross section andfits into a corresponding recess 48 in the adjustable member 34. so that when said valve stem 39 is rotated to open or close'the valve it will alsorotate said member 34. The upper end of the valve stem 39 projects through the upper end of the cap and is provided with a handle 49 whereby it ymay be rotated. l t

A coil spring 50 is interposed between the collar 40 and an annular shoulder 52 in the upper portion of the valve casing 1. Said -1 spring 5() exerts upward pressure on the valve stem 39 to hold the conical upper portion 41`and the collar 46 snugly against the bushing 42, so that there will be no leakage of fluid through the top of the cap 45.

designates a strainer preferably of tubular form interposed between the inlet end o'lE the valve casing 1 and the port 14, for preventing sand, grit, orV other foreign matter from being carried by the Huid between. the ball plug 2O and the seats 3 and 21 and scarring or otherwise damaging said ball plug and seats. For convenience in installing the strainer 60, 1 have provided the lower portion ot the valve casing 1 with an opening in axial alignment with the bushing 10., the lower end of which latter projects through the partition. 12 and enters the ot fluid the handle i9 is rotated in the p.i`"o1 ei""' `direction l'or causing the adjustable member Se to move upwaidlyso th-Vattlie'fluidpressing` against the under portion of the ball plug QOcair raise the latter roniits seat 8 and causefittopushf the cage 22up\`vardly and Ihold it' in Contact' ivitlrth'e; underside' ot' i said ii'iembei" Bel. Any fluid which may pass betvveei'i tlieball plug3 20 'and the seat 2l in the cage 22de free to esca-,pe through the re'- lief' ports 26y and 28 andtheieby let they ball plug' 20 come in' direct Contact with 'said seat 2l Wliei'e 'it is held against' rotation by the up- `Ward pressureL ofthe fluid passing through the 'portZ Tli'e escape of any fluid 'from betivee'ii the ball' plug 20 andthe seatzZl is h-atened'iby the' suction of the iiuid directed ulnvardly by thet'tubular portion'ot' the parl tit`ion-12.2 As a grouiidjoint' isprovided between' the portions 4l and ,lof the Valve steiii'j 39 and the bushingtQ, respectively', leakage otfiuid't'hrougli the top oftlie valve cannot occur. Inorder to -close the 'valve the 'handle 49 is rotated iii' a reverse direction to that at' which it was rotated to open the valve. This cz'iuse'svtheval've stein4 to rotatie the iiiember which is carried donf'iiwardly by itsV screw threads and in turn forces the' cage'QQ'doivnWardly until the,y

ball plug QO'is seated in the'bushing l0. The cage 2Q, however, is prevented from rotatingwit'h the n'ieii'iber by the lugs A300perat'ig'iii the vertical vgrooves 32, and hence danger oi scarrin'g,` orl otliei'ivise damaging the ball'plug` 2O and itsseats Sand Qlis avoided.: Y i

The construction'l and operationj ot the valve disclosed" by4 Fig. 6, i'sjsimilar tol that of the valve disclosed by Fig. l', as is evi# denced by y nf'ith exp ients afl the ,chief difference bein'guth'aft when 'the ii'lod iii'ed i'i'oii'i'i ot 4valvefis openedyto permit l'iuid to pass in, the direction oi" the arrovv' i any reversal ot the fluid in theA direction of the arrow' o willinstantly cause the ball plugQ() to engage 'the seat 8 and thus prevent the fluid `ifi-om`V flowing,

backwardly through the valve. y

`ln'addition to the toriiis disclosed by the drau'fing, reserveall rights to such other forms and modifications as properly tall' Within the spirit and scope 'ofthe' invention as claimed. Y

r.coi'respondingv reference, ii nn'ierals Having thus described my invention, What I claim and desire to secure by Letters Patent, is:

I. Ina valve ot the character described, a casingfhaving a partition with a port extending therethrough; a plug for normally closing s'aid port, a movable cage seated on sa'id'plng and provided with comiiiunicating reliel' ports, one ot' which extends to the plug, lugs o'i'r' said `cage projecting` into grooves in the casing to prevent rotation of saidca'ge, a ineiiibei"threaded'in the' casing and eii'gagiiigsaid cage, aii'din'anually Conf tiolled liiieaiis .engaging saide tl'ii'eaded" mein` ber for rotating and causing the latter to Control the movement o-tlie""plii-g.`

2. AA"valve ot the .characterdescribedt coii' sistinfg or a-casig having a' partition with a port extendingtherethrough, a: plug for Opening a'n-dclosiiig'. said port', a Cage movl rot'at onx andembracing"said-plug, a member tiiieadedlin the casing and engaging. said cage, an yaxial' nipple oir' said threaded nieii'il bei-*projecting iiiti'rv air opening inA the cage, a-A 'valve' st'ein" having a` conical'r portion and engaging lsaid threaded' in'eiiiber foi"A rotating afiid'causiiig-j the: latter 'to' controlv the niove ment ot the" plug, abushingin `Which said valve" steiiiis jouriialed, anda cap oir the casing and in whichl said bushing is iii'oiint'edl A' valve of' the Character"described eonsisting otfacasing having al partition' With af-port extending" therethrough, a' b'alllpiug for opening and closing said port, a iifiovalily ii'louiited' iii the casing" a'ndf held from rotation and engaging said balll plug, aV ii'ieii'iberl threaded" in thel casing andi' eng'ilkingsaid cage,y a valve stein having a` conicail'ioi'tio'n and collar' and adapted' to rotate said threaded member to' cause the latter' to control the movement or thel ball plug, abu'shfing" snugly littiirg' said'coiiical portion and said collar, a cap n'iouiited 1upon' tli'e' casing vaiid i'n" which said'y bushing' snugly tits', and aspriiig inlerpoz-ed between'tlie'casing and said Lcoila'r.

'il'.v` ln 1a valve-'oit t'liechfiiacter described, a casing having an' opei'iing therein, a sferen' -cap ifoi* closing said openii'ig,Y aY balli plug, a-

partitioir iii" the ci, and extending up-' n-"a'i'dly andaroiind said ball plug, a bushing extending through saidv partition liavliig a' seat Vlorthe balliplur and arranged in axial alin'e'm'ent ivithI said -zci'evap, and a tubulaf strainer engaging. said' bushing and said screw cap/.7' I A t v y In testiiiiony'whereo't I aiiiXiny'signature.

HAROLD' BRQWN,

llfi

en ably mounted in the'4 casiiigand held from 

